People and Pets
Living Their
Best Lives
The Apex Ophthalmology Difference
We treat our clients like we want to be treated – with respect, honesty, empathy and kindness.
We treat our patients as if they were our own pets – with love and gratitude.
We make it easy for you to understand how to help your pet.
The most experienced medical and surgical
veterinary ophthalmology team in Colorado.
veterinary ophthalmology team in Colorado.
Our Team
Leaders in Veterinary Ophthalmology

Tanja Nuhsbaum - DVM, MS, Diplomate ACVO
Veterinary Ophthalmologist and Practice Owner

Trish Gearhart - PhD, DVM, Diplomate ACVO
Veterinary Ophthalmologist

Tammy Miller Michau - DVM, MS, Diplomate ACVO
Veterinary Ophthalmologist
Experienced Veterinary Anesthesia Professionals

Nicole Giron
RVT, VTS, AVTAA

What to Expect During Your First Visit
Find answers to your questions about what goes on during the first appointment and directions to our clinic.

What to Expect on Surgery Day
Information to help you and your pet prepare for surgery with our team.

Frequently Asked Questions
Answers to the most common questions about our practice.

Tell Us About Your Experience
Send us feedback.
Apex Veterinary
Ophthalmology Specialists
7100 S Clinton St
Centennial, CO 80112-3353
(turn East on Easter Lane)
Centennial, CO 80112-3353
(turn East on Easter Lane)
Hours of Clinical Operation:
Monday - Friday
8:00 am to 5:00 pm
8:00 am to 5:00 pm
Second Location
34 Van Gordon St Ste #160
Lakewood, CO 80228
Lakewood, CO 80228
(Working alongside Evolution Veterinary
Specialty and Emergency Hospital)
Specialty and Emergency Hospital)
Hours of Clinical Operation:
Monday - Friday
8:00 am to 5:00 pm
8:00 am to 5:00 pm
See what our clients are saying:
Shannon GloverSeptember 1, 2026Trustindex verifies that the original source of the review is Google. Had a great experience with Apex Ophthalmology. I got my days mixed up and ended up showing up a day early for my appointment 🤦🏼♀️ they got me in anyways and we're so accommodating. I'm very grateful for their help with my pup and their flexibility.Meg SkeltonAugust 24, 2026Trustindex verifies that the original source of the review is Google. Dr. Tanja Nuhsbaum and her entire team were exceptional. Hawkins, our 8½-year-old Cattle Dog, developed diabetic cataracts shortly after being diagnosed with diabetes. We came to them hoping to save as much of his vision as we could. We’ve worked with several vets and specialists through this process, and this team was by far the best we’ve worked with. They were thorough, clear, and honest about the surgery, the risks, what could go wrong, and what recovery would actually look like. They also genuinely cared about Hawkins. They’ve been almost as excited as we are watching him get his vision back. What really stood out was Dr. Nuhsbaum’s willingness to think with us, not just hand us a protocol and send us on our way. I’ve been diabetic myself for 40 years, so I had a lot of detailed questions about managing Hawkins’ blood sugar around surgery and through recovery. She listened, took those questions seriously, and worked with us to figure out what made sense for him specifically. Hawkins’ cataracts were successfully removed. Because of complications, they weren’t able to implant replacement lenses, so the outcome was not exactly what we had hoped for. But he can see again, and preserving his sight and his ability to move through the world has been incredibly valuable. The biggest thing I would tell another dog owner is this: if your dog is diabetic and you are seeing changes in their eyes, do not wait. In our experience, this moved much faster in Hawkins than I understood it could. Get them to Dr. Nuhsbaum’s team as soon as you can. If you’re considering this team for cataract surgery or a complicated eye condition, I highly recommend them.Annette BertrandAugust 21, 2026Trustindex verifies that the original source of the review is Google. Dr Tanya and her team were very attentive and caring for our CoCo. The exam was so thorough and the follow up was over the top with detailed reports and follow up calls. CoCo was back to playing with her brothers as a typical 10 month old. Thank you for all of the TLC.Jim BroscoAugust 18, 2026Trustindex verifies that the original source of the review is Google. Dr. Michau, Nicole and the other staff could not have been more caring or attentive to our cat. They explained everything clearly, outlined our best options and then after each visit (we required three for a serious sequestrum issue) check in on your pet to make sure things are going well. I am VERY happy I found them !Susan ComminsAugust 15, 2026Trustindex verifies that the original source of the review is Google. My dog and I have always received excellent care and service from Apex. I can highly recommend them to anyone who has a pet that requires a vet opthalmologist!!Peleg AkninAugust 15, 2026Trustindex verifies that the original source of the review is Google. I cannot express enough gratitude to Dr. Tanya Nussbaum and her incredible team for the exceptional care they provided to my French Bulldog puppy, Neo. From the moment we walked through the door, we were greeted with warm smiles, positive energy, and genuine kindness that immediately put us at ease. Dr. Nussbaum is an absolute master of her field. Her professional expertise, combined with her gentle approach, is unparalleled. She took the time to explain every detail of Neo’s condition and treatment plan with incredible patience, clarity, and warmth, ensuring we felt fully informed and supported every step of the way. The communication throughout the entire process was top-notch-clear, prompt, and thoroughly reassuring. Thanks to their skill and dedication, Neo's eye treatment was a complete success! If you are looking for world-class veterinary ophthalmology delivered with true compassion and professionalism, look no further than Dr. Nussbaum and her outstanding team. Highly recommended! ⭐️⭐️⭐️⭐️⭐️Cindy FernandezJuly 22, 2026Trustindex verifies that the original source of the review is Google. Our experience here was amazing! They took such good care of our dog, Papi! And continue to do so. The care, the explanation and genuine treatment has been great. We are confident in what they do is in his best interest. We highly recommend this office, everyone there has been so good, great customer service and top quality vet services by very qualified dr.'s and vet staffGoogle rating score: 5.0 of 5, based on 253 reviews

